8EWS10S

Overview

The Vishay 8EWS10S is a surface mountable input rectifier diode from the SAFEIR series, housed in a TO-252AA (D-Pak) package. It features a maximum repetitive peak reverse voltage of 1000 V and an average forward current rating of 8 A at a case temperature of 95°C. The device exhibits a maximum forward voltage drop of 1.1 V at 8 A and 25°C junction temperature, with a peak non-repetitive surge current capability of 200 A. Operating temperatures range from -55°C to 150°C.

Feature Summary

• Optimized for very low forward voltage drop with moderate leakage characteristics
• Utilizes glass passivation technology for reliable operation up to 150°C junction temperature
• Designed for high voltage surge capability suitable for primary rectification stages

Applications

• Single-phase bridge rectification circuits
• Three-phase bridge rectification circuits
• Input stage primary rectification

Procurement Notes

Verify the specific ordering suffix when purchasing, as options such as TRL or TRR indicate different tape and reel orientations. Confirm that the component matches the original International Rectifier specifications, noting that Vishay acquired this product line. Ensure the requested quantity aligns with standard reel multiples, which are typically 2,000 pieces for standard reels and 3,000 pieces for left or right orientation reels.

Selection Notes

Select the 8EWS10S when a 1000 V blocking voltage is required for surface mount applications. This component is appropriate for designs needing an 8 A continuous current rating within a D-Pak outline. Consider the thermal resistance values provided in the datasheet to ensure adequate heat dissipation on FR-4 or aluminum substrates. Verify compatibility with existing footprints if replacing legacy through-hole or other surface mount rectifiers.

Part Context

This part belongs to the SAFEIR series of rectifiers, originally developed by International Rectifier before being integrated into Vishay's portfolio. The series is characterized by optimized forward voltage performance and robust surge handling capabilities. The 8EWS10S specifically addresses the 1000 V segment of the family, sharing identical package outlines with other series members to facilitate design flexibility across various voltage ratings.

Replacement Considerations

Direct replacements include other variants within the 8EWS..S series, such as the 8EWS08S for lower voltage requirements or the 8EWS12S for higher voltage needs. Cross-reference with Vishay's current SAFEIR documentation to confirm pinout and thermal specifications remain consistent with the original International Rectifier data sheet.